ASTROSAT CZTI

Data Quality Report

Orbit 09079

Creation date: 2024-06-27T15:41:19.051644
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_057T04_9000001264_09079cztM0_level2.evt modeM0/AS1G07_057T04_9000001264_09079cztM0_level2_quad_clean.evt
Size (bytes)536,195,52090,365,760
Size511.4 MB 86.2 MB
Events in quadrant A4,994,190556,956
Events in quadrant B3,696,511569,623
Events in quadrant C3,405,537559,575
Events in quadrant D3,646,802542,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019849254
B015718110
C015383114
D015881167

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72823755.149684%
B73113004.103406%
C73081712.339901%
D72862152.950865%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7363 7359 54 54 0.73% 0.73%
B 7362 7362 7 7 0.10% 0.10%
C 7363 7361 3 3 0.04% 0.04%
D 7363 7363 14 14 0.19% 0.19%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 5 1461222 8084.97 881 859 180.6
A 1 162 51312 279.32 881 859 180.6
A 13 251 24723 132.11 881 859 180.6
B 0 214 60531 350.26 889 866 170.3
B 4 80 43221 248.64 889 866 170.3
B 4 48 34959 200.14 889 866 170.3
C 14 234 46725 230.03 860 861 199.4
C 13 61 6663 29.1 860 861 199.4
C 12 4 3502 13.24 860 861 199.4
D 1 52 77986 328.23 857 838 235.0
D 2 14 67076 281.82 857 838 235.0
D 12 233 59386 249.1 857 838 235.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter